I have a 2004 CRV ... radio was lower the volume on its own and speakers going out .... a fonzi hit to the dash they came back ...... one day the radio went out ... No power at all ..... the radio is out, dash lights out, and tail lights out ...... the radio fuse under the steering column is fine BUT the #2 under the hood is blow and blows as soon as you try to replace it .......... where do I start ...... I have unplugged the radio fuse under the steering column and it didn’t help ......... need some help

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Here's some schematics.